Overview

• Researchers found that leaves near streetlights in Beijing were tougher and less damaged by insects.
• The study analyzed 5,500 leaves from 180 trees, measuring toughness, nutrient levels, and insect damage.
• Artificial light may cause trees to prioritize defense over growth, altering their chemical composition.
• Tougher leaves decompose slower, potentially affecting soil nutrient cycling.
• The reduced herbivory could lead to lower populations of herbivorous insects and their predators.